├── .gitattributes ├── .gitignore ├── LICENSE ├── pom.xml └── src └── main ├── java └── ca │ └── spottedleaf │ └── packetlimiter │ ├── PacketBucket.java │ ├── PacketLimiter.java │ ├── PacketListener.java │ ├── config │ └── PacketLimiterConfig.java │ └── util │ └── ChatColour.java └── resources ├── config.yml └── plugin.yml /.gitattributes: -------------------------------------------------------------------------------- 1 | * text eol=lf -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Compiled class file 2 | *.class 3 | 4 | # Log file 5 | *.log 6 | 7 | # BlueJ files 8 | *.ctxt 9 | 10 | # Mobile Tools for Java (J2ME) 11 | .mtj.tmp/ 12 | 13 | # IntelliJ 14 | *.iml 15 | *.ipr 16 | *.iws 17 | .idea/ 18 | out/ 19 | 20 | # Maven 21 | target/ 22 | pom.xml.tag 23 | pom.xml.releaseBackup 24 | pom.xml.versionsBackup 25 | pom.xml.next 26 | release.properties 27 | dependency-reduced-pom.xml 28 | buildNumber.properties 29 | .mvn/timing.properties 30 | .mvn/wrapper/maven-wrapper.jar 31 | 32 | # Package Files # 33 | *.jar 34 | *.war 35 | *.nar 36 | *.ear 37 | *.zip 38 | *.tar.gz 39 | *.rar 40 | 41 | # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml 42 | hs_err_pid* 43 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 4.0.0 6 | 7 | ca.spottedleaf.packetlimiter 8 | packetlimiter 9 | 1.0.1 10 | jar 11 | PacketLimiter 12 | 13 | 14 | UTF-8 15 | 16 | 17 | 18 | 19 | spigotmc-repo 20 | https://hub.spigotmc.org/nexus/content/repositories/snapshots/ 21 | 22 | 23 | dmulloy2-repo 24 | http://repo.dmulloy2.net/nexus/repository/public/ 25 | 26 | 27 | 28 | 29 | 30 | org.spigotmc 31 | spigot-api 32 | 1.12.2-R0.1-SNAPSHOT 33 | provided 34 | 35 | 36 | com.comphenix.protocol 37 | ProtocolLib 38 | 4.4.0 39 | provided 40 | 41 | 42 | 43 | 44 | clean package 45 | 46 | 47 | org.apache.maven.plugins 48 | maven-compiler-plugin 49 | 3.8.0 50 | 51 | 1.8 52 | 1.8 53 | 54 | 55 | 56 | 57 | 58 | 59 | -------------------------------------------------------------------------------- /src/main/java/ca/spottedleaf/packetlimiter/PacketBucket.java: -------------------------------------------------------------------------------- 1 | package ca.spottedleaf.packetlimiter; 2 | 3 | import java.util.Arrays; 4 | 5 | public class PacketBucket { 6 | 7 | /** multiplier to convert ns to ms */ 8 | private static final double NANOSECONDS_TO_MILLISECONDS = 1.0e-6; // 1e3 / 1e9 9 | 10 | /** divisor to convert ms to s */ 11 | private static final int MILLISECONDS_TO_SECONDS = 1000; 12 | 13 | /** 14 | * The time frame this packet limiter will count packets over (ms). 15 | */ 16 | public final double intervalTime; 17 | 18 | /** 19 | * The time each bucket will represent (ms). 20 | */ 21 | public final double intervalResolution; 22 | 23 | /** 24 | * Total buckets contained in this limiter. 25 | */ 26 | public final int totalBuckets; 27 | 28 | /** contains all packet data, note that indices of buckets will wrap around the array */ 29 | private final int[] data; 30 | 31 | /** pointer which represents the bucket containing the newest data */ 32 | private int newestData; 33 | 34 | /** the time attached to the bucket at newestData */ 35 | private double lastBucketTime; 36 | 37 | /** cached sum of all data */ 38 | private int sum; 39 | 40 | /** 41 | * Constructs a packetlimiter which will record total packets sent over the specified 42 | * interval time (in ms) with the specified number of buckets 43 | * @param intervalTime The specified interval time, in ms 44 | * @param totalBuckets The total number of buckets 45 | */ 46 | public PacketBucket(final double intervalTime, final int totalBuckets) { 47 | this.intervalTime = intervalTime; 48 | this.intervalResolution = intervalTime/(double)totalBuckets; 49 | this.totalBuckets = totalBuckets; 50 | this.data = new int[totalBuckets]; 51 | } 52 | 53 | /* 54 | * Stores number of packets according to their relative time. Each "bucket" will represent a time frame, according 55 | * to this.intervalResolution. The newestData pointer represents the bucket containing the newest piece of data. 56 | * The oldest piece of data is always the bucket after the newest data. When a new time frame is needed, the newest 57 | * data pointer is simply moved forward and previous data is either removed or overridden. 58 | * 59 | * For example, the following piece of code will sum all data older than the newest (starting from new -> older): 60 | * 61 | * int sum = 0; 62 | * for (int i = (newestData - 1) % buckets; i != newestData; i = (i - 1) % total_buckets) { 63 | * sum += buckets[i]; 64 | * } 65 | * 66 | * Additionally, the sum of data is cached. Older data is automatically subtracted and newer data is automatically 67 | * summed. This makes calls made within a time interval of 'this.intervalResolution' O(1) 68 | * 69 | * Calls made over larger timers are O(n), with n ~ min(total_buckets, timePassed / bucket_interval) 70 | */ 71 | 72 | /** 73 | * Adds to this limiter's packet count. Old data is automatically purged, and the current time from {@link System#nanoTime()} 74 | * is used to record this data. Returns the new packet count. 75 | * @param packets The number of packets to attach to the current time 76 | * @return The new packet count 77 | */ 78 | public int incrementPackets(final int packets) { 79 | return this.incrementPackets(System.nanoTime(), packets); 80 | } 81 | 82 | private int incrementPackets(final long currentTime, final int packets) { 83 | final double timeMs = currentTime * NANOSECONDS_TO_MILLISECONDS; 84 | double timeDelta = timeMs - this.lastBucketTime; 85 | 86 | if (timeDelta < 0.0) { 87 | // we presume the difference is small. nanotime always moves forward 88 | timeDelta = 0.0; 89 | } 90 | 91 | if (timeDelta < this.intervalResolution) { 92 | this.data[this.newestData] += packets; 93 | return this.sum += packets; 94 | } 95 | 96 | final int bucketsToMove = (int)(timeDelta / this.intervalResolution); 97 | 98 | // With this expression there will be error, however it is small and will continue to the next counter. 99 | // In the end what matters is the DIFFERENCE in time between each bucket being the interval resolution, 100 | // which will remain approximately the case for this class' use case. 101 | // For large bucket counts (n > 1_000_000) we might have to consider the error. 102 | final double nextBucketTime = this.lastBucketTime + bucketsToMove * this.intervalResolution; 103 | 104 | if (bucketsToMove >= this.totalBuckets) { 105 | // we need to simply clear all data 106 | Arrays.fill(this.data, 0); 107 | 108 | this.data[0] = packets; 109 | this.sum = packets; 110 | this.newestData = 0; 111 | this.lastBucketTime = timeMs; 112 | 113 | return packets; 114 | } 115 | 116 | // buckets we have no data for (since we've jumped ahead of them) 117 | for (int i = 1; i < bucketsToMove; ++i) { 118 | final int index = (this.newestData + i) % this.totalBuckets; 119 | this.sum -= this.data[index]; 120 | this.data[index] = 0; 121 | } 122 | 123 | final int newestDataIndex = (this.newestData + bucketsToMove) % this.totalBuckets; 124 | this.sum += packets - this.data[newestDataIndex]; // this.sum += packets; this.sum -= this.data[index] 125 | this.data[newestDataIndex] = packets; 126 | this.newestData = newestDataIndex; 127 | this.lastBucketTime = nextBucketTime; 128 | 129 | return this.sum; 130 | } 131 | 132 | /** 133 | * Returns the total number of packets recorded in this interval. 134 | */ 135 | public int getTotalPackets() { 136 | return this.sum; 137 | } 138 | 139 | /** 140 | * Returns the current packet rate (since last update call), in packets per second 141 | */ 142 | public double getCurrentPacketRate() { 143 | return this.sum / (this.intervalTime / (double)MILLISECONDS_TO_SECONDS); 144 | } 145 | } 146 | -------------------------------------------------------------------------------- /src/main/java/ca/spottedleaf/packetlimiter/PacketLimiter.java: -------------------------------------------------------------------------------- 1 | package ca.spottedleaf.packetlimiter; 2 | 3 | import ca.spottedleaf.packetlimiter.config.PacketLimiterConfig; 4 | import com.comphenix.protocol.ProtocolLibrary; 5 | import org.bukkit.Bukkit; 6 | import org.bukkit.configuration.file.FileConfiguration; 7 | import org.bukkit.event.Listener; 8 | import org.bukkit.plugin.java.JavaPlugin; 9 | 10 | import java.util.logging.Logger; 11 | 12 | public final class PacketLimiter extends JavaPlugin implements Listener { 13 | 14 | private PacketLimiterConfig config; 15 | 16 | private boolean loadFailed; 17 | private PacketListener packetListener; 18 | 19 | public PacketLimiterConfig getConfigData() { 20 | return this.config; 21 | } 22 | 23 | public PacketListener getPacketListener() { 24 | return this.packetListener; 25 | } 26 | 27 | @Override 28 | public void onLoad() { 29 | this.saveDefaultConfig(); 30 | final FileConfiguration config = this.getConfig(); 31 | this.config = new PacketLimiterConfig(config); 32 | 33 | if (this.config.interval <= 0.0 || this.config.maxPacketRate <= 0.0) { 34 | this.loadFailed = true; 35 | throw new IllegalStateException("Config is invalid! Options may not be negative"); 36 | } 37 | 38 | final Logger logger = this.getLogger(); 39 | 40 | logger.info("Packet sampling interval: " + this.config.interval + "s"); 41 | logger.info("Max packet rate: " + this.config.maxPacketRate + "packets/s"); 42 | } 43 | 44 | @Override 45 | public void onEnable() { 46 | if (this.loadFailed) { 47 | Bukkit.getScheduler().runTask(this, () -> { 48 | Bukkit.getPluginManager().disablePlugin(PacketLimiter.this); 49 | }); 50 | return; 51 | } 52 | 53 | this.packetListener = new PacketListener(this, this.config.kickMessage, this.config.maxPacketRate, this.config.interval * 1000.0); 54 | 55 | ProtocolLibrary.getProtocolManager().addPacketListener(this.packetListener); 56 | Bukkit.getPluginManager().registerEvents(this.packetListener, this); 57 | } 58 | 59 | @Override 60 | public void onDisable() { 61 | if (this.packetListener != null) { 62 | ProtocolLibrary.getProtocolManager().removePacketListeners(this); 63 | } 64 | } 65 | } -------------------------------------------------------------------------------- /src/main/java/ca/spottedleaf/packetlimiter/PacketListener.java: -------------------------------------------------------------------------------- 1 | package ca.spottedleaf.packetlimiter; 2 | 3 | import com.comphenix.protocol.PacketType; 4 | import com.comphenix.protocol.events.ListenerOptions; 5 | import com.comphenix.protocol.events.ListenerPriority; 6 | import com.comphenix.protocol.events.PacketAdapter; 7 | import com.comphenix.protocol.events.PacketEvent; 8 | import com.comphenix.protocol.injector.server.TemporaryPlayer; 9 | import org.bukkit.Bukkit; 10 | import org.bukkit.entity.Player; 11 | import org.bukkit.event.EventHandler; 12 | import org.bukkit.event.EventPriority; 13 | import org.bukkit.event.Listener; 14 | import org.bukkit.event.player.PlayerJoinEvent; 15 | import org.bukkit.event.player.PlayerQuitEvent; 16 | 17 | import java.text.DecimalFormat; 18 | import java.util.ArrayList; 19 | import java.util.List; 20 | import java.util.UUID; 21 | import java.util.concurrent.ConcurrentHashMap; 22 | import java.util.logging.Level; 23 | 24 | public final class PacketListener extends PacketAdapter implements Listener { 25 | 26 | private static final DecimalFormat ONE_DECIMAL_PLACE = new DecimalFormat("0.0"); 27 | private final ConcurrentHashMap playerPacketInfo = new ConcurrentHashMap<>(); 28 | 29 | private final String kickMessage; 30 | private final double maxPacketRate; 31 | private final double interval; 32 | 33 | public PacketListener(final PacketLimiter plugin, final String kickMessage, final double maxPacketRate, final double interval) { 34 | super(plugin, ListenerPriority.LOWEST, getPackets(), ListenerOptions.ASYNC, ListenerOptions.INTERCEPT_INPUT_BUFFER); 35 | // we want to listen at the earliest stage so we can reduce the overhead of packets going through other plugins, 36 | // as well as other plugin logic being executed for cancelled packets 37 | 38 | this.kickMessage = kickMessage; 39 | this.maxPacketRate = maxPacketRate; 40 | this.interval = interval; 41 | 42 | // ... support reload 43 | for (final Player player : Bukkit.getOnlinePlayers()) { 44 | this.playerPacketInfo.put(player.getUniqueId(), new PlayerInfo(new PacketBucket(this.interval, 150), player.getUniqueId())); 45 | } 46 | } 47 | 48 | private static List getPackets() { 49 | final List packets = new ArrayList<>(); 50 | 51 | for (final PacketType type : PacketType.values()) { 52 | if (type.isClient() && type.getProtocol() == PacketType.Protocol.PLAY && type.isSupported()) { 53 | packets.add(type); 54 | } 55 | } 56 | 57 | return packets; 58 | } 59 | 60 | @Override 61 | public void onPacketReceiving(final PacketEvent event) { 62 | if (event.isCancelled()) { 63 | return; 64 | } 65 | 66 | final Player player = event.getPlayer(); 67 | 68 | if (player instanceof TemporaryPlayer || player == null) { 69 | return; // we don't have UUID at this stage 70 | } 71 | 72 | final UUID targetUniqueId = player.getUniqueId(); 73 | PlayerInfo info = this.playerPacketInfo.get(targetUniqueId); 74 | 75 | if (info == null) { 76 | return; 77 | } 78 | 79 | final PacketBucket bucket = info.packets; 80 | 81 | synchronized (bucket) { 82 | final PlayerInfo currInfo = this.playerPacketInfo.get(targetUniqueId); 83 | 84 | if (currInfo != info) { 85 | return; 86 | } 87 | 88 | if (info.violatedLimit) { 89 | event.setCancelled(true); 90 | return; 91 | } 92 | 93 | final int packets = bucket.incrementPackets(1); 94 | 95 | if (bucket.getCurrentPacketRate() > this.maxPacketRate) { 96 | info.violatedLimit = true; 97 | event.setCancelled(true); 98 | 99 | Bukkit.getScheduler().runTask(this.plugin, () -> { 100 | final Player target = Bukkit.getPlayer(targetUniqueId); 101 | if (target == null) { 102 | return; 103 | } 104 | 105 | target.kickPlayer(this.kickMessage); 106 | this.plugin.getLogger().log(Level.WARNING, "Player {0} ({1}) was kicked for sending too many packets! {2} in the last {3} seconds", 107 | new Object[] {target.getName(), target.getUniqueId(), packets, ONE_DECIMAL_PLACE.format(bucket.intervalTime / 1000.0)}); 108 | }); 109 | } 110 | } 111 | } 112 | 113 | 114 | @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true) 115 | public void onPlayerJoin(final PlayerJoinEvent event) { 116 | final UUID player = event.getPlayer().getUniqueId(); 117 | 118 | this.playerPacketInfo.put(player, new PlayerInfo(new PacketBucket(this.interval, 150), player)); 119 | } 120 | 121 | @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true) 122 | public void onPlayerQuit(final PlayerQuitEvent event) { 123 | this.playerPacketInfo.remove(event.getPlayer().getUniqueId()); 124 | } 125 | 126 | public static final class PlayerInfo { 127 | 128 | public final PacketBucket packets; 129 | public final UUID player; 130 | public boolean violatedLimit; 131 | 132 | public PlayerInfo(final PacketBucket packets, final UUID player) { 133 | this.packets = packets; 134 | this.player = player; 135 | } 136 | } 137 | } -------------------------------------------------------------------------------- /src/main/java/ca/spottedleaf/packetlimiter/config/PacketLimiterConfig.java: -------------------------------------------------------------------------------- 1 | package ca.spottedleaf.packetlimiter.config; 2 | 3 | import org.bukkit.ChatColor; 4 | import org.bukkit.configuration.file.FileConfiguration; 5 | 6 | public final class PacketLimiterConfig { 7 | 8 | public static final int CURRENT_CONFIG_VERSION = 0; 9 | 10 | /** in seconds */ 11 | public final double interval; 12 | 13 | /** in packets per second */ 14 | public final double maxPacketRate; 15 | public final String kickMessage; 16 | 17 | public final int version; 18 | 19 | public PacketLimiterConfig(final FileConfiguration config) { 20 | this.interval = config.getDouble("interval"); // seconds 21 | this.maxPacketRate = config.getDouble("max-packet-rate"); // packets per second 22 | this.kickMessage = ChatColor.translateAlternateColorCodes('&', config.getString("kick-message")); 23 | 24 | this.version = config.getInt("config-version"); 25 | 26 | if (this.version > CURRENT_CONFIG_VERSION) { 27 | throw new IllegalStateException("Trying to load newer config version! This plugin is for " + CURRENT_CONFIG_VERSION + ", but the config says " + this.version); 28 | } 29 | } 30 | } -------------------------------------------------------------------------------- /src/main/java/ca/spottedleaf/packetlimiter/util/ChatColour.java: -------------------------------------------------------------------------------- 1 | package ca.spottedleaf.packetlimiter.util; 2 | 3 | import org.bukkit.ChatColor; 4 | 5 | /** 6 | * Use this class instead of {@link ChatColor} for compile-time string constants. 7 | */ 8 | public final class ChatColour { 9 | 10 | // javadoc taken from org.bukkit.ChatColor 11 | 12 | /** 13 | * Represents black. 14 | */ 15 | public static final String BLACK = ChatColor.COLOR_CHAR + "0"; 16 | 17 | /** 18 | * Represents dark blue. 19 | */ 20 | public static final String DARK_BLUE = ChatColor.COLOR_CHAR + "1"; 21 | 22 | /** 23 | * Represents dark green. 24 | */ 25 | public static final String DARK_GREEN = ChatColor.COLOR_CHAR + "2"; 26 | 27 | /** 28 | * Represents dark blue (aqua). 29 | */ 30 | public static final String DARK_AQUA = ChatColor.COLOR_CHAR + "3"; 31 | 32 | /** 33 | * Represents dark red. 34 | */ 35 | public static final String DARK_RED = ChatColor.COLOR_CHAR + "4"; 36 | 37 | /** 38 | * Represents dark purple. 39 | */ 40 | public static final String DARK_PURPLE = ChatColor.COLOR_CHAR + "5"; 41 | 42 | /** 43 | * Represents gold. 44 | */ 45 | public static final String GOLD = ChatColor.COLOR_CHAR + "6"; 46 | 47 | /** 48 | * Represents grey. 49 | */ 50 | public static final String GREY = ChatColor.COLOR_CHAR + "7"; 51 | 52 | /** 53 | * Represents dark grey. 54 | */ 55 | public static final String DARK_GREY = ChatColor.COLOR_CHAR + "8"; 56 | 57 | /** 58 | * Represents blue. 59 | */ 60 | public static final String BLUE = ChatColor.COLOR_CHAR + "9"; 61 | 62 | /** 63 | * Represents green. 64 | */ 65 | public static final String GREEN = ChatColor.COLOR_CHAR + "a"; 66 | 67 | /** 68 | * Represents aqua. 69 | */ 70 | public static final String AQUA = ChatColor.COLOR_CHAR + "b"; 71 | 72 | /** 73 | * Represents red. 74 | */ 75 | public static final String RED = ChatColor.COLOR_CHAR + "c"; 76 | 77 | /** 78 | * Represents light purple. 79 | */ 80 | public static final String LIGHT_PURPLE = ChatColor.COLOR_CHAR + "d"; 81 | 82 | /** 83 | * Represents yellow. 84 | */ 85 | public static final String YELLOW = ChatColor.COLOR_CHAR + "e"; 86 | 87 | /** 88 | * Represents white. 89 | */ 90 | public static final String WHITE = ChatColor.COLOR_CHAR + "f"; 91 | 92 | /** 93 | * Represents magical characters that change around randomly. 94 | */ 95 | public static final String MAGIC = ChatColor.COLOR_CHAR + "k"; 96 | 97 | /** 98 | * Makes the text bold. 99 | */ 100 | public static final String BOLD = ChatColor.COLOR_CHAR + "l"; 101 | 102 | /** 103 | * Makes a line appear through the text. 104 | */ 105 | public static final String STRIKETHROUGH = ChatColor.COLOR_CHAR + "m"; 106 | 107 | /** 108 | * Makes the text appear underlined. 109 | */ 110 | public static final String UNDERLINE = ChatColor.COLOR_CHAR + "n"; 111 | 112 | /** 113 | * Makes the text italic. 114 | */ 115 | public static final String ITALIC = ChatColor.COLOR_CHAR + "o"; 116 | 117 | /** 118 | * Resets all previous chat colors or formats. 119 | */ 120 | public static final String RESET = ChatColor.COLOR_CHAR + "r"; 121 | 122 | private ChatColour() { 123 | throw new RuntimeException(); 124 | } 125 | } -------------------------------------------------------------------------------- /src/main/resources/config.yml: -------------------------------------------------------------------------------- 1 | # PacketLimiter config 2 | # The defaults are targeted at preventing obvious packet spamming while allowing clients with significant network 3 | # issues to play 4 | 5 | # The interval to measure packets over 6 | # Lowering this value will limit peak packets from players which would target people with bad connections 7 | # Raising this value will allow higher peak packet rates, which will help with people who have poor connections 8 | interval: 7.0 9 | 10 | # The maximum maximum packets per second for players 11 | # It is measured over the configured interval 12 | max-packet-rate: 500.0 13 | 14 | # Message to display to clients who get kicked 15 | kick-message: "&cSent too many packets" 16 | 17 | # Configuration version, do not touch. 18 | config-version: 0 -------------------------------------------------------------------------------- /src/main/resources/plugin.yml: -------------------------------------------------------------------------------- 1 | main: ca.spottedleaf.packetlimiter.PacketLimiter 2 | version: "1.0.1" 3 | name: PacketLimiter 4 | author: Spottedleaf 5 | depend: [ProtocolLib] 6 | api-version: "1.13" 7 | --------------------------------------------------------------------------------